In an unrelated story

While reading this weeks articles an old memory resurfaced. Does anyone recall the old commercials they used to show on Saturday mornings that had cartoon animals telling us how to do certain things on the computer? This was around the mid to late 80's as I recall, so most of the information in the commercials was how to use word processing software. I can't remember if these were PSA's or who put them out (possibly Apple or some computer company) but they were obviously aimed at children. My question is why did they stopped these commercials and why don't they make any for an older audience? This would help those who are afraid of "blowing up" their untouched computers.